Improvement in plows



T. W l A R D.

Plow.

No. 2,557. Patented Apr. 1842.

UNITED STATES PATENT OFFICE.

THOMAS WVIARI), OF AVON, NEW YORK.

IMPROVEMENT I N P LOWS.

Specification forming part of Letters Patent No. 2,557, dated April 16, 1842.

. inside of the mold-board, with landside removed, showing the lock 6 in section below Fig. 5, cross-section of landside and shield.

The beam and handlesof my improved plow are constructed in the usual way. On the inside of the mold-board (which is formed like many now in use) I cast a square projection, e, ]5ig. 4, near the lower front; corner which stands at right angles to the landside, having a lip at its outer end projecting backward. There is also a rib, c, curving upward and backward from the projection e, and of sufficient thickness to steady the landside. Above this is a horizontal projection, a, jutting over the landside, which serves to hold it down to its place, and two staples, s s, properly placed to receive the right handle, h, and a socket, t, for holding the brace 14, which extends across to the landside. The landside has a mortise, 0 into which the projection 0 enters, and is locked by putting the landside forward. Its lower half is recessed the thickness of the shield m n, so that when they are fastened together their faces will be even with each other, as is shown in cross-section, Fig. 5. It has also two slots, at a, near the lower edge, one at each end, to receive the staples of the shield a socket for the brace u, and a staple, s, for the left; handle. On the forward end there is a rib, o, curved similar to that on the moldboard, which fits into the recess forward of the rib c.

The shield is an oblong plate of cast-iron,

tapered in front to suit the form of the share f, which projects over it and serves to keep i t steady. It also has a projection, r, rising from the upper side to cover the mortise e in the landside. On the inside are cast two staples, a M, which project through the slots in the landside and are keyed. The share is also fastened on by a staple, f, on the under side, passing through the mold-board and keyed below.

I do not claim in the within-described plow the form of the mold'board curve or general arrangement of parts, as they are not new but What I do claim as my invention, and de sire to secure by Letters Patent, is-

The projection e and rib c on the mold-board, combined with the mortise 6 projection 0, and overlapping share f, in the manner and for the purpose herein described.

THUS. WIARD.- tn eses WILLIAM LEIGH PIERCE LITTLE, MATTHEW I. THOMAS. 

